Critical adsorption and critical Casimir forces for geometrically structured confinements

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dc.creatorTröndle, M.
dc.creatorHarnau, L.
dc.creatorDietrich, S.
dc.date2008-06-04
dc.date2008-10-31
dc.date.accessioned2026-07-07T10:14:01Z
dc.date.available2026-07-07T10:14:01Z
dc.descriptionWe study the behavior of fluids, confined by geometrically structured substrates, upon approaching a critical point at T = Tc in their bulk phase diagram. As generic substrate structures periodic arrays of wedges and ridges are considered. Based on general renormalization group arguments we calculate, within mean field approximation, the universal scaling functions for order parameter profiles of a fluid close to a single structured substrate and discuss the decay of its spatial variation into the bulk. We compare the excess adsorption at corrugated substrates with the one at planar walls. The confinement of a critical fluid by two walls generates effective critical Casimir forces between them. We calculate corresponding universal scaling functions for the normal critical Casimir force between a flat and a geometrically structured substrate as well as the lateral critical Casimir force between two identically patterned substrates.
dc.description25 pages, 21 figures
dc.identifierhttps://arxiv.org/abs/0806.0760
dc.identifierhttp://arxiv.org/abs/0806.0760
dc.identifierThe Journal of Chemical Physics 129, 124716 (2008)
dc.identifierdoi:10.1063/1.2977999
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/172734
dc.subjectSoft Condensed Matter
dc.titleCritical adsorption and critical Casimir forces for geometrically structured confinements
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